The Sinclair Sisters Trilogy is about sisters, Charity, Patience, and Hope Sinclair. Fun names!!
While these books are in a series, I found that they didn't really overlap other than being sisters. The other sisters don't play a key part in the story in each book. So you don't have to read all three books.
Book 1, Midnight Sun, is about Charity and McCall Hawkins.
Book 2, Desert Heat, is about Patience and Dallas Kingman.
Book 3, Deep Blue, is about Hope and Conner Reese.
If you like these books, you might like: